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Introduction
Safety precautions
Read through this manual before starting installation, connection (wiring), operation, or maintenance
and inspection for correct use. Be familiar with the knowledge about the device, information about
safety, and all the precautions before starting operation.
The safety precautions are classified into the following categories in this manual.
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WARNING
Negligence of the description can cause dangers including deaths or
serious injuries.
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CAUTION
Negligence of the description can cause dangers including intermediate or
slight injuries or material losses.
Negligence of the description under the CAUTION title can cause serious results in certain
circumstances. These safety precautions are important and must be observed at any time.
Purposes
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WARNING
• FVR-E11S is designed to drive a three-phase induction motor. Do not use it for single-phase
motors or for other purposes.
Otherwise fire could occur.
• FVR-E11S may not be used for a life-support system or other purposes directly related to the
human safety.
• Though FVR-E11S is manufactured under strict quality control, install safety devices for
applications where serious accidents or material losses are foreseen in relation to the failure of it.
Otherwise an accident could occur.
Installation
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WARNING
• Install the inverter on a nonflammable material such as metal.
Otherwise fire could occur.
• Do not place flammable matter nearby.
Otherwise fire could occur.
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CAUTION
• Do not hold the cover during transportation.
Otherwise the inverter may drop and cause injuries.
• Do not allow lint, paper, wood chips, dust, metallic chips or other foreign matter in the inverter or do
not allow them attached to the heat sink.
Otherwise fire or an accident could occur.
• Do not install or operate an inverter which is damaged or lacking parts.
Otherwise fire, an accident or injuries could occur.
Wiring
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WARNING
• When connecting the inverter to the power supply, add a circuit breaker for circuit protection and
earth leakage breaker in the path of power supply.
Otherwise fire could occur.
• Be sure to connect the grounding cable without fail.
Otherwise electric shock or fire could occur.
• Both screws of grounding terminals of FVR5.5/7.5E11S-4EN has to be tightened up securely even
if one grounding terminal is not used.
Otherwise electric shock or fire could occur.
• Qualified electricians should carry out wiring.
Otherwise electric shock could occur.
• Perform wiring after checking that the power supply is turned off.
Otherwise electric shock could occur.
• Be sure to perform wiring after installing the main body of the inverter.
Otherwise electric shock or injuries could occur.
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